
Based on 1,614 research-grade iNaturalist observations in Kentucky, Spicebush Swallowtail is most often recorded in July; in Kentucky it behaves like a summer visitor / breeder. It ranks #7 among butterflies recorded in the state in our data.
Papilio troilus
Spicebush Swallowtail in Kentucky by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Kentucky in July

Eastern Tiger Swallowtail

Silver-spotted Skipper

Monarch
Huron Skipper

Silvery Checkerspot
Hackberry Emperor

Pearl Crescent

Eastern Tailed-Blue
Places to look in Kentucky
Daniel Boone National Forest
Cumberland Falls State Resort Park
Old Fort Harrod State Park
Pine Mountain State Resort Park
E. P. "Tom" Sawyer State Park
Levi Jackson Wilderness Road State Park
FAQ
When does Spicebush Swallowtail appear in Kentucky?
Mainly July–August, with the most records in July.
How common is Spicebush Swallowtail in Kentucky?
It ranks #7 by number of iNaturalist observations among butterflies in Kentucky (1,614 records in our sample).